...Guanghe Huo; Zhaobo Chen; Yinghou Jiao; Xuezhi Zhu Dynamic vibration absorber (DVA) is a practical tool used for sound and vibration suppression in the specific frequency band. The parameters of DVAs should be optimally tuned to obtain the best sound and vibration suppression application effects...

...-effective solution that can be performed in a relatively short term. The implemented objective function is directly related to the overall radiated sound power, which is minimized using a genetic algorithm-based optimizer. In the acoustic model, radiation efficiencies are approximated to unity, the accuracy...

...Xiudong Tang; Yilun Liu; Wen Cui; Lei Zuo When optimized, tuned mass dampers (TMDs) can effectively mitigate the vibration of the primary structure, because additional resonance and damping are introduced by the auxiliary mass-spring-damper system. Similar effect can be realized without auxiliary...

... , Ω 3 , . . . , Ω n ] represents the porosity of each layer and n is the total number of layers. Given an expected porosity of a graded sample, the restriction of same mass and volume as the uniform (ungraded) sample requires that the average of the optimized...

.... Assoc. Editor: Thomas J. Royston. 23 09 2011 05 10 2012 An optimization methodology to increase the noise transmission loss (TL) of damped sandwich structures is presented. The prediction of the TL uses a numerical tool based on a finite element formulation for the sandwich plate...

... , Design and Analysis of Experiments , 6th ed. , Wiley , New York . [12] Myers , R. H. , and Montgomery , D. C. , 2002 , Response Surface Methodology, Process and Product Optimization Using Designed Experiments , 2nd ed. , John Wiley and Sons , New York . [13] Myers , R. H...

... of the effect of boundary conditions on the laminated steel specimen. The new setup is developed in combination with a frequency response function based optimization method, to automatically derive the dynamic properties of viscoelastic core materials and generate their master curves. A solver based...

...Marco Danti; Davide Vigè; Guido Vincent Nierop The cost and weight reduction requirements in automotive applications are very important targets in the design of a new car. For this reason, all the components of the vehicle have to be optimized and the design of the damping material layout has...

...Fan Yang; Ramin Sedaghati; Ebrahim Esmailzadeh In this study, the structural vibration analysis and design of a Timoshenko beam with the attached tuned-mass-damper (TMD) under the harmonic and random excitations are presented using the finite element technique. A design optimization methodology has...

...Costin D. Untaroiu; Paul E. Allaire; William C. Foiles In some industrial applications, influence coefficient balancing methods fail to find the optimum vibration reduction due to the limitations of the least-squares optimization methods. Previous min-max balancing methods have not included...

... switch events; however, at each switch event the SSA instantly “retunes” its natural frequency and maintains that frequency until the next switch event. This paper considers the optimization of the state-switched absorber applied to a continuous vibrating system and details the experimental validation...